--- product_id: 25096696 title: "Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size" brand: "shimano" price: "HK$5" currency: HKD in_stock: false reviews_count: 13 url: https://www.desertcart.hk/products/25096696-shimano-xt-bb-mt800-bottom-bracket-bsa-threaded-one-size store_origin: HK region: Hong Kong --- # 24mm Hollowtech II spindle 68/73mm shell fit Sealed cartridge bearings Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size **Brand:** shimano **Price:** HK$5 **Availability:** ❌ Out of Stock ## Summary > 🚴‍♂️ Upgrade your ride with Shimano XT — where precision meets power! ## Quick Answers - **What is this?** Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size by shimano - **How much does it cost?** HK$5 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/25096696-shimano-xt-bb-mt800-bottom-bracket-bsa-threaded-one-size) ## Best For - shimano enthusiasts ## Why This Product - Trusted shimano brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Sealed Bearings:** Sealed cartridge bearings protect against dirt and moisture, delivering smooth rotation and long-lasting reliability. - • **Complete Installation Kit:** Includes cups, bearings, inner sleeve, and spacers for a tailored chainline and hassle-free setup. - • **Trusted Shimano Engineering:** Backed by Shimano’s legendary quality and innovation, making it the go-to choice for serious riders. - • **Precision Fit for MTB Frames:** Designed to perfectly fit 68 or 73 mm bottom bracket shells, ensuring seamless integration with your bike frame. - • **Optimized Hollowtech II Interface:** Compatible with 24mm spindle cranksets for superior power transfer and lightweight performance. ## Overview The Shimano XT BB-MT800 Bottom Bracket is a high-performance, outboard-bearing unit engineered for mountain bikes with 68 or 73 mm shell widths. Featuring Shimano’s Hollowtech II 24mm spindle interface and sealed cartridge bearings, it ensures smooth, durable operation and easy installation with included spacers and components. Trusted by riders worldwide, it delivers reliable power transfer and longevity for serious cycling enthusiasts. ## Description Shimano's XT BB-MT800 Bottom Bracket is outboard-bearing and compatible for use with 24 millimeter spindle cranksets.• Sealed cartridge bearings&bulll; Bottom bracket for bikes with 68 or 73 mm width bottom bracket shell• Includes cups, bearings, inner sleeve, and (3) x 2.5mm spacers• Shimano P/N: IBBMT800B• Spindle Interface: Shimano Hollowtech IIBrand: Shimano Review: XT quality but make sure you have the adaptor - If you read some of my reviews, you may notice a preference for older bicycle technology. The XT bottom bracket in this review is of newer technology that I am reservedly impressed with. Yes, I know these bearings have been around for more than a few years, but up until more recent bicycle purchases all of my bikes used square taper bottom brackets, which I thought were the end all of bottom bracket technology. Square taper bottom brackets are hefty chunks of steel and grease that can take a serious beating. Hollow tech bottom brackets like the XT are of a different design (that can be looked up online for a proper explanation). The big drawback to the square taper (for me, anyway) is the difficulty in finding the proper length axle. Direct replacement is easy, but a new install may require several purchases to get the crank and chainline properly fitted. Since I was transferring over a hollow tech crank to my new frame, the XT bottom bracket made for an easy install. Only difficult part is making sure you have the correct bottom bracket (socket wrench) adaptor for torqueing it into the frame, of which Shimano has different sizes, so be sure to verify you have the adaptor. In my case, I made the mistake of assuming the Dura-Ace adaptor I had would fit, which it did not, so I had to wait for that to ship. Once I had the tool in hand, installation was simple, with each side properly marked. A tip is to make sure the screw that secures the plastic cable guide (on the underside of the bottom bracket shell) is loosened or removed prior to install or removal. So,times not needed, but you will know rather quickly if you encounter resistance. The bottom bracket includes spacers, which can be useful for making sure your chainline is correct with the bottom bracket, something the road versions do not appear to include (Dura-Ace, at least). Note that I am using this in a touring frame, although with a Shimano 105 double crank. In the few months of use I have no complaints. If you need a new bottom bracket of this type, then it is highly recommended (and relatively inexpensive). Review: This wokrs well, exceeds expectations! Cant go wrong with Shimano XT! - I bough this product based on a review that I seen here and thanks to that person's review it worked for my set up. My bike originaly came with a truvative/SRAM GXP bottom bracket and a 3x10 set up and my plan was to convert it into a 1x11 Shimano XT Hallow tech crankset and I was not sure what bottom braket I would need as I dont know a thing about bottom brakets, so I bought this bottom bracket based on the guy who put his review and thanks to him I end up buying the right one, so thank you guy for putting your thoughtful review!!!!! ## Features - Mtb - Hollowtech II - 2 items ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00WLFUP2U | | Bearing Number | Multiple | | Bearing Type | Ball Bearing | | Best Sellers Rank | #682,512 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #459 in Bike Bottom Brackets | | Brand | SHIMANO | | Brand Name | SHIMANO | | Compatible Lubricant | Grease | | Customer Reviews | 4.7 out of 5 stars 1,199 Reviews | | Global Trade Identification Number | 04524667919957 | | Included Components | Bottom bracket | | Item Dimensions | 4.72 x 4.72 x 1.97 inches | | Item Thickness | 5 Centimeters | | Item Type Name | Bottom Bracket | | Item Weight | 113 Grams | | Item dimensions L x W x H | 4.72 x 4.72 x 1.97 inches | | Manufacturer | Shimano | | Material | Metal, Plastic | | Material Type | Metal, Plastic | | Model | IBBMT800B | | Part Number | IBBMT800B | | Specification Met | No | | UPC | 689228919952 | | Unit Count | 1.0 Count | ## Product Details - **Bearing Number:** Multiple - **Brand:** SHIMANO - **Item Weight:** 113 Grams - **Item dimensions L x W x H:** 4.72 x 4.72 x 1.97 inches - **Material:** Metal, Plastic ## Images ![Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size - Image 1](https://m.media-amazon.com/images/I/416QSmgKixL.jpg) ![Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size - Image 2](https://m.media-amazon.com/images/I/51h8lYP3nCL.jpg) ![Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size - Image 3](https://m.media-amazon.com/images/I/61CU3Go4-oL.jpg) ![Shimano XT BB-MT800 Bottom Bracket BSA Threaded, One Size - Image 4](https://m.media-amazon.com/images/I/51MPasDbciL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ XT quality but make sure you have the adaptor *by E***E on May 30, 2019* If you read some of my reviews, you may notice a preference for older bicycle technology. The XT bottom bracket in this review is of newer technology that I am reservedly impressed with. Yes, I know these bearings have been around for more than a few years, but up until more recent bicycle purchases all of my bikes used square taper bottom brackets, which I thought were the end all of bottom bracket technology. Square taper bottom brackets are hefty chunks of steel and grease that can take a serious beating. Hollow tech bottom brackets like the XT are of a different design (that can be looked up online for a proper explanation). The big drawback to the square taper (for me, anyway) is the difficulty in finding the proper length axle. Direct replacement is easy, but a new install may require several purchases to get the crank and chainline properly fitted. Since I was transferring over a hollow tech crank to my new frame, the XT bottom bracket made for an easy install. Only difficult part is making sure you have the correct bottom bracket (socket wrench) adaptor for torqueing it into the frame, of which Shimano has different sizes, so be sure to verify you have the adaptor. In my case, I made the mistake of assuming the Dura-Ace adaptor I had would fit, which it did not, so I had to wait for that to ship. Once I had the tool in hand, installation was simple, with each side properly marked. A tip is to make sure the screw that secures the plastic cable guide (on the underside of the bottom bracket shell) is loosened or removed prior to install or removal. So,times not needed, but you will know rather quickly if you encounter resistance. The bottom bracket includes spacers, which can be useful for making sure your chainline is correct with the bottom bracket, something the road versions do not appear to include (Dura-Ace, at least). Note that I am using this in a touring frame, although with a Shimano 105 double crank. In the few months of use I have no complaints. If you need a new bottom bracket of this type, then it is highly recommended (and relatively inexpensive). ### ⭐⭐⭐⭐⭐ This wokrs well, exceeds expectations! Cant go wrong with Shimano XT! *by E***. on September 6, 2020* I bough this product based on a review that I seen here and thanks to that person's review it worked for my set up. My bike originaly came with a truvative/SRAM GXP bottom bracket and a 3x10 set up and my plan was to convert it into a 1x11 Shimano XT Hallow tech crankset and I was not sure what bottom braket I would need as I dont know a thing about bottom brakets, so I bought this bottom bracket based on the guy who put his review and thanks to him I end up buying the right one, so thank you guy for putting your thoughtful review!!!!! ### ⭐⭐⭐⭐⭐ Shimano quality. Great value *by F***R on March 27, 2019* Replaced my three year old race face BB that was creaking and notchy. Easy install and paired up to my raceface crankset with no problem. Just remember to use the same size spacers (included) as the ones that you took off and you should be set. Smooth and silent and at this price just replace it annually. ## Frequently Bought Together - SHIMANO BB-MT800 BSA-Innenlager (Lagerschalen) // SLX, Deore XT - Park Tool PPL-1 Polylube 1000 Grease Tube Tool 4 oz,White - Shimano Crank assembly FC-960/760 Ultegra TL-FC16 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/25096696-shimano-xt-bb-mt800-bottom-bracket-bsa-threaded-one-size](https://www.desertcart.hk/products/25096696-shimano-xt-bb-mt800-bottom-bracket-bsa-threaded-one-size) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-05-17*